• Material:  99% Alumina
  • Outer Diameter:  3, 4, 5, 6, 8, 10, 12, 15, 18, 20, 25, 30, 40mm
  • Length:  120, 150, 200mm
  • Tolerance:  Blanks (as fired): +2/-0mm, Precision Rods (as machining): +/-0.01mm

What’s alumina ceramic?

2Al(g)+3H2O(g)→Al₂O₃(c)+3H2(g)  and AlCl(g)+3CO2(g)+3H2(g)→Al₂O₃(c)+6HCl(g)+3CO(g)

Alumina ceramic requests

Alumina ceramic, (Al₂O₃). At He-Shuai company, we mainly offer advanced customized alumina ceramics and services to our clients. Alumina ceramic belongs to a kind of industry ceramic. Alumina is its main material. And its feature is high hardness, long-wearing, and only can be formed by diamond grinding. It has a huge range of industrial applications. And the shape has a tube, ring, disc, rod, plate … other special shapes.

Alumina ceramic is a type of ceramic material mainly composed of aluminum oxide (Al2O3), used as an insulating material for electrical components. Alumina ceramic has good conductivity, mechanical strength, and high-temperature resistance. Its characteristics make it one of the most widely used ceramics in structural, wear, and corrosive environments.

Alumina ceramic is usually made from bauxite and can be produced using injection molding, pressing, isostatic pressing, slip casting, diamond machining, and extrusion. Like other important engineering materials such as silicon nitride, alumina can be produced by dry pressing and sintering or by hot pressing with appropriate sintering aids.

What kind of alumina ceramic we can produce?

We have hundreds of normal standard models for your reference. Some of the alumina ceramics have enough stock. but some others haven’t. So, Contact us today if you need a special size .welcome to the custom-made product from He-Shuai Ltd.

Alumina ceramic material specification


Mechanical strength:

The bending strength of alumina porcelain sintered products can reach 250MPa, and that of hot-pressed products can reach 500MPa. The purer the alumina composition, the higher the strength. The strength can be maintained at high temperatures up to 900°C, as shown in the figure below. Utilizing the mechanical strength of alumina porcelain, device porcelain, and other mechanical components can be made. The Mohs hardness of alumina ceramics can reach 9, plus it has excellent wear resistance, so it is widely used in the manufacture of knives, ball valves, grinding wheels, ceramic nails, bearings, etc., among which alumina ceramic knives and industrial valves are used the widest.

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